Because given the work needed to actually get a feature into the standard I'd assume there's at least some demand motivating the addition.

I'd also be a bit hesitant about claiming that nobody is using said features. It's quite possible that the "new" feature is actually "just" a standardization of something that exists in practice. WG14 is hardly a stranger to that kind of thing, from what I understand; it wouldn't surprise me if something similar occurs for the Fortran/COBOL working groups as well.